Magnetic Needle Jewel Bearing
Product Code : JA-PLE-4136
The Magnetic Needle Jewel Bearing (SKU JA-PLE-4136) is a magnetised carbon steel needle fitted with a jewel bearing, so that it balances on a pivot and turns freely to point along a magnetic field. This magnetic needle with jewel bearing is listed in 50 mm, 75 mm and 100 mm lengths for school and college magnetism practicals, and JaincoLab supplies it for class sets and apparatus spares.
Specifications
The needle is made of carbon steel with a jewel bearing and is listed in three sizes, 50 mm, 75 mm and 100 mm, so the length can be matched to the class activity or the apparatus it will be used with.
| Product | Magnetic Needle Jewel Bearing |
| SKU | JA-PLE-4136 |
| Needle material | Carbon steel |
| Bearing | Jewel bearing |
| Sizes | 50 mm, 75 mm and 100 mm |
Applications of the magnetic needle with jewel bearing
Balanced on a pivot, the needle aligns itself with the local magnetic field, so it is used to show the direction of the earth’s field, to trace the field around magnets and current-carrying wires, and as the moving element in simple magnetometer set-ups.
- Showing the north–south direction of the earth’s magnetic field
- Plotting magnetic field lines around a bar magnet
- Oersted’s experiment on the magnetic effect of a current-carrying wire
- Building simple compass and magnetometer set-ups in practical classes
Scope of supply and ordering
The listing covers the carbon steel magnetic needle with jewel bearing in the size ordered: 50 mm, 75 mm or 100 mm. Accessories, spares and quantities are confirmed on the quotation.
Minimum order quantity, lead time and packing are confirmed on each quotation according to the sizes, the quantity of each and the delivery destination. JaincoLab supplies school class sets, bulk orders for colleges and education programmes and export consignments to buyers in Africa, the Middle East and South and South-East Asia.
Frequently asked questions
Which sizes are available?
The needle is listed in 50 mm, 75 mm and 100 mm lengths.
What is the needle made of?
It is made of carbon steel and fitted with a jewel bearing.
How does it differ from the brass bearing needle?
This needle has a jewel bearing; the Magnetic Needle Brass has a brass cup bearing and is also listed in a 62 mm size.
Related products
See more magnetism apparatus in Physics Lab Equipments, part of the catalogue of JaincoLab, a physics lab equipment manufacturer in India.
Request a quote
To order the Magnetic Needle Jewel Bearing, send the sizes, quantities and delivery destination through the JaincoLab contact page or email [email protected]. For tender or project supply, see our tenders page.
